MATLAB: How i can put a rectangular around forground

Question

in regionprob, bounding box put a rectangular a round each object but i need just one rectangular around my forground which is in the center of my image .i mean i need a perim around my object that have rectangular form.

Answer 1

Call bwconvhull() before you call bwlabel() or bwconncomp(). That will join the two blobs and create just one giant blob, which, of course, will have just one bounding box.

binaryImage = bwconvhull(binaryImage);
labeledImage = bwlabel(binaryImage);
measurements = regionprops(labeledImage, 'BoundingBox');
boundingBox = measurements.BoundingBox;